Apparatus for underglaze decorating print ware



Jan. 5, F AULT APPARATUS FOR UNDERGLAZE DECORATING PRINT WARE afz/fu/idummy Patented Jan. 5, 1932 nire STATES'- FBANK AULT, F SALEM,IIIOVASSIGNOR T0A THESAJEECPOTTER'Y COMPANY, OFI

vP;ArtNr-Hcresce Y sanear, omda CORPORATION cromo APPARATUS nonfcinnnetazn nnconarine PRINT' WARE Appliatin mea March 4,

rllhe invention relates to pottery ware hav-i ing decorations thereonunder the glaze coat, and more particularlyy to apparatus fortransferring a printed'design onto the ware 5 before it isdipped intothe glaze.

Pottery ware` which yhas been fired once, and 'before it has been glazedis commonly known as biscuit ware.y It yhas beenffound that a designprinted onV tissue'v paper and thelile maybe transferred to biscuit,ware4 by placing the paper with the printed sidel vdown upon thebiscuit ware, and thencovering the paper with soft soap and rubbing overthe same with a brush or a piece of flannel. f

However, it is necessary toi applya considerable force in the rubbingoperation'iand a large amount of manual laboris involved, making therubbing/operation a tiresome 29 and tedious process. f .f x' fAccordingly, it isy an object .of the present invention to Yprovide asimplefand `compactapparatus for economically applyinga rubhing orbrushing action .to the back ofthe printed paper when it is placed inposition on the biscuit ware, whereby the decorativer design will beproperly. and uniformly trans-` ferred to the ware in a relatively shorttime.

` Another object is to provide improved 3G means for bringing the wareinto operative' position relative to they rubbing element after theVprinted paper is positionedupon the ware.

These and other objects `are attained byi Q5 the parts, combinationsvand improvementsVV which comprise the present invention, and which maybe stated in general. termsas including a supporting frame', a driveshaft,`

means on the frame-forvrotating the drive shaft, a rubbing element onthe drive shaft, a non-rotating table for supporting the ware andnormally spaced from the rubbing element, and means for moving the tableto n bring the ware into contact with the rubbing element.

A preferred embodiment of the present improvements is illustrated in theaccompanyingdrawings, in which l Figure 1 is a front yelevational viewof the improved apparatus showing a piece of 1931 semi No. massa;

- braced 'as shown at 13to maintain the frame rigid.`

Means' `for rotating the Vrubbingv element f parts Y may include amotormounted on the upper end of the frame 11`b`and enclosed in a suitablehousing 14; VAstarting switch 14ga is preferablyprovidedfor operatingthe mol tor.L

i The motor rotates the vertical shaft 15 journaled in t-he housing 14,and av rub'bin elenientvindicated generally at 16 is secured uponthe'lower end of the. shaft 15.Y This rubbing element is preferably inthe form of a `brush 17, having its bristles shaped to fitl the innercontour of the article to be decorated, asbest shown in Fig. 3. A

yMe'ans for supporting the ware prefer,-

ably includes a table 18 fixed upon the upper end of a vertical yshaft19 below and axially aligned with the shaft 15. The upper surface-of thetable 18 is preferably covered with friction material as indicated at2O,v in order to prevent the ware from turning on the e abley when thebrush 17 is in contact with the ware. i

The shaft 19 is mounted for vertical slid-` ing movement and againstrotation upon theY lower portion ofthe frame 11. The meansformountingthe shaft may include a supf porting bracket 21 secured tothe'frame asV by bolts '22, and having -thespaced upper and lower shaftbearings 23 and 23 respectively, in axial alignment with the shaft y15,'n The shaft19 maybeslidably keyed in these bea-rings vto permit`vertical sliding movement D *D 10o without rrotation .of the shaft.

Means for raising the table 18 t-o bring the ware thereon in contactwith the brush 17, may include a pinion gear 24 rotatively mounted uponthe supporting bracket 21, and

s adapted to mesh with the rack portion 25 on the inner side of theshaft 19.

The gear 24 is preferably fixed upon a spindle 26, which spindle isjournaled in the bracket 21 and extends laterally outwardly lotherefrom. A lever arm 27 is secured at one end to the outer end of thespindle 26, and has a slot and pin connection at its other end with themanually operated lever 28, as indicated at 29. u The lever 28preferably has its upper end *otally connected to the upper end portionof the bracket 21 as shown at 30.

A stop 31 may be secured to the shaft 19 to limit its downward morementby abutment of the stop with the bearing 23 when the table 18y is in theposition shown in 3.

When it is desired to transfer a (lesion which is printed upon tissuepaper and the like'to a piece of biscuit ware, the paper is 25. 4placedprinted side downward upon the upper surface of the ware, in properrelative position to the contour of the ware. The parts of the improvedapparatus areV normally the position shown in Fig. 3 due to 3g, thee'ect of rravity upon the table 20 and' ien the printed paper havingshaft 19.

the desired. design thereon has beenproperly plied, to the ware as aboveset forth, thev baelrof the paper is covered with a soft soap 35, andthe were 1s placed upon the table 20 in the central portion thereofthetable' occupying its normal position as shown in Fig. 3.

After. starting the motor to rotate the brush, the operator then exertsan inward' 4u. pressure on the lower end of the lever 28 moving theAsame inward toward the frame 1I. This. inward movement of the leverz 28rotates the lever arm 27 inwardly and also the gear 24. Rotation ot'vthe gear 24 in a [3. clock-Wise direction as viewed in Figs. 2'and 3carries the shaft 19 and table 20 upwardly untillthe ware. is in`contact with the brush 17, the bristles fitting into the contour of theWare so as to exert a uniform pressure over 5o all arts of the printedpaper;

hns it will be seen` that a simple and effective apparatus-is providedfor exertingl a uniform in posltion on the ware for any desired length.15 of time, and the improved means for'raising vandA lowering the tableprovides for varying the pressure exerted as desired.

Obviously such an apparatus achieves a great saving in labor andexpense, and it has 00. been found that a higher quality article isproduced by the use of such apparatus than by the old manual methods.

I'claim: I. Apparatus for transferring printed decorations to potteryWare including, a,-

ressure upon the printed paper whenk frame, al rubbing elementrotatively mounted on the frame, means for rotating the rubbing element,non-rotating means coaxial with the rubbing element and normally spacedtherefrom for supporting the ware, and means for axially moving thesupporting means toward the rubbing element.

2. Apparatus for transferring printed decorations to pottery wareincluding, a frame, a brush rotatively mounted on the frame and having'its bristles shaped to lit the contour to the ware to be decorated,means for rotating the brush, non-rotating means coaxial with the brushand normally spaced therefrom for supporting the ware, and means l'oraxially moving the supporting means toward ther 3. Apparatus fortransferring Vprinted decorations to pottery ware including', a frame, arubbing element rotatively mounted on the frame, means for rotating therubbing elememt, a shaft axially aligned with the rubbing'element, atable fixed on the shaft and normally spaced from the rubbing element,means slidably and non-rotatively mounting the shaft' upon the frame,and means for axially moving the table toward the rubbing element.

.4. Apparatus for tramsterring printedl decorations to pottery wareincluding, a frame, a brush rotatively mounted on the frame and havingits; bristles shaped to fit the contour of the ware to be decorated,meansl for rotaiugthe brush, a shafftaxially aligned with the brush, atable fixed on the shaft and normaly spaced from. the'brush, meansslidably and noni-rotativel'y mounting the shaft upon the frame, andimeans for axially moving the table toward the brush.

5. Apparatus for transferring printed dee

